JPH04117103A - Power interruption detector for ac electric motor vehicle - Google Patents
Power interruption detector for ac electric motor vehicleInfo
- Publication number
- JPH04117103A JPH04117103A JP23249990A JP23249990A JPH04117103A JP H04117103 A JPH04117103 A JP H04117103A JP 23249990 A JP23249990 A JP 23249990A JP 23249990 A JP23249990 A JP 23249990A JP H04117103 A JPH04117103 A JP H04117103A
- Authority
- JP
- Japan
- Prior art keywords
- power interruption
- set value
- output
- circuit
- rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 238000004804 winding Methods 0.000 claims description 11
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000009499 grossing Methods 0.000 claims description 6
- 230000008929 regeneration Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract description 2
- 230000006698 induction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、交流電気車の停電検知装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power outage detection device for an AC electric vehicle.
［従来の技術］
第２図は例えば電気学会誌１１０巻２号（平成２年２月
）、１０５〜１１２頁に掲載された論文「新幹線スーパ
ーひかりのＡＣドライブシステム」に開示された従来の
停電検知装置を備えた交流電気車を示すブロック図であ
り、図において、（１）は交流架線、（２）はこの交流
架線（１）と接触しているパンタグラフ、（３）はこの
パンダグラフ（２）と電気的に接続された主変圧器、（
４）はこの主変圧器（３）の２次巻線に各々接続された
コンバータ例えばパルス幅変調制御コンバータ（以下、
ＰＷＭコンバータと称す、）、（５）はこれらＰＷＭコ
ンバータ（４）と並列に接続された平滑コンデンサ、（
６）はこの平滑コンデンサ（５）と並列に接続されたイ
ンバータ例えば可変電圧可変周波数インバータ（以下、
ＶＶＶＦインバータと称す、）、（７）はこのＶＶＶＦ
インバータ（６）に接続された電動機例えば誘導電動機
、（８）は補機などの制ｍ電源として使用される主変圧
器（３）の３次巻線、（９）はこの３次巻線（８）に接
続された所定の周波数成分を検出する手段例えばバンド
パスフィルタ回路、（１０）は停電検知セット値設定回
路、（１１）はこれらバンドパスフィルタ回路（９）、
停電検知セット値設定回路（１０）にそれぞれ接続され
た比較器、（１２）はこの比較器（１１）から出力され
た停電検知信号であって、ＰＮＭコンバータ（４）およ
びＶＶＶＦインバータ（６）に供給される。[Prior Art] Figure 2 shows, for example, a conventional power outage disclosed in the paper "Shinkansen Super Hikari AC Drive System" published in Journal of the Institute of Electrical Engineers of Japan, Vol. 110, No. 2 (February 1990), pp. 105-112. It is a block diagram showing an AC electric car equipped with a detection device, in which (1) is an AC overhead wire, (2) is a pantograph in contact with this AC overhead wire (1), and (3) is this pantograph ( 2), the main transformer electrically connected to (
4) is a converter connected to each secondary winding of the main transformer (3), such as a pulse width modulation control converter (hereinafter referred to as
) and (5) are smoothing capacitors connected in parallel with these PWM converters (4).
6) is an inverter connected in parallel with this smoothing capacitor (5), such as a variable voltage variable frequency inverter (hereinafter referred to as
), (7) is this VVVF inverter.
An electric motor such as an induction motor is connected to the inverter (6), (8) is the tertiary winding of the main transformer (3) used as a control power source for auxiliary equipment, etc., and (9) is the tertiary winding ( 8) is connected to a means for detecting a predetermined frequency component, such as a band-pass filter circuit; (10) is a power failure detection set value setting circuit; (11) is a band-pass filter circuit (9);
Comparators (12) are respectively connected to the power failure detection set value setting circuit (10), and the power failure detection signal outputted from the comparator (11) is sent to the PNM converter (4) and the VVVF inverter (6). Supplied.
従来の停電検知装置を備えた電気車は上述したように構
成されており、交流架１１（１）からパンタグラフ（２
）を介して主変圧器（３）に交流電圧が印加されると、
この交流電圧は降圧されてＰＩＩＩＮコンバータ（４）
に入力される。 ＰＩＩＩＮコンバータ（４）はパルス
幅変調制御を行うことによって力率をほぼ１に保ちなが
ら直流出力電圧を一定に制御する。An electric vehicle equipped with a conventional power failure detection device is configured as described above, and a pantograph (2) is connected from the AC rack 11 (1) to the
), when an alternating voltage is applied to the main transformer (3),
This AC voltage is stepped down to the PIIIN converter (4)
is input. The PIIIN converter (4) controls the DC output voltage to be constant while keeping the power factor at approximately 1 by performing pulse width modulation control.
ＰＩＩＭコンバータ（４）の直流出力側に接続された平
滑コンデンサ（５）を電圧源としてＶＶＶＦインバータ
（６）は、可変電圧可変周波数の交流電圧を出力し、も
って誘導電動機（７〉を駆動制御する。Using the smoothing capacitor (5) connected to the DC output side of the PIIM converter (4) as a voltage source, the VVVF inverter (6) outputs an AC voltage with variable voltage and variable frequency, thereby driving and controlling the induction motor (7>). .
電気車のカ行時（加速制御時）には上述した通り電力変
換を行うことにより誘導電動機（７）を加速させるが、
ブレーキ時には誘導電動ｆｉ （７）を発電機として作
用させ、ＶＶＶＦインバータ（６）はコンバータ動作を
、そしてｐＨ１Ｍコンバータ（４）はインバータ動作を
行い、交流電力回生ブレーキを作用させる。When the electric vehicle moves (during acceleration control), the induction motor (7) is accelerated by performing power conversion as described above.
During braking, the induction electric motor fi (7) acts as a generator, the VVVF inverter (6) performs converter operation, the pH1M converter (4) performs inverter operation, and AC power regenerative braking is applied.
しかし、地上設備などの事故で変電所の遮断器がオフと
なった時、電気車が交流電力回生ブレキを作用させてお
り、他にカ行している負荷車両があると、電力的にバラ
ンスしてしまう可能性がある。このため停電時には車両
側も直ちに回生ブレーキ動作を停止する必要がある。そ
のため、バンドパスフィルタ回路（９）、停電検知セッ
ト値設定回路（１０）および比較器（１１）から成る停
電検知装置が設けられており、通常は変電所に吸収され
ている高周波成分が変電所開放時には増加することを検
知する高周波電圧検知方式が採用されている。However, when the circuit breaker at a substation is turned off due to an accident involving ground equipment, the electric vehicle is using its AC power regenerative braking, and if there are other load vehicles moving, the power will be unbalanced. There is a possibility that it will happen. Therefore, in the event of a power outage, it is necessary for the vehicle side to immediately stop the regenerative braking operation. Therefore, a power outage detection device consisting of a band pass filter circuit (9), a power outage detection set value setting circuit (10) and a comparator (11) is provided, and the high frequency components normally absorbed in the substation are A high-frequency voltage detection method is used that detects an increase in voltage when it is open.
主変圧器（３）の３次巻線（８）は、停電検知以外にも
、２ｗＭコンバータ（４）のゲート点弧制御や力率制御
などに利用されている。バンドパスフィルタ回路（９）
は、ＰＷＭコンバータ（４）のスイッチング周波数に起
因する特定の高周波成分を検出している。例えばＰＭＮ
制御が７パルス制御、電源周波数が６０Ｈｚ、主変圧器
（３）の２次巻線に接続されたＰＷＭコンバータ（４）
の相数が４相の場合は、バンドパスフィルタ回路（９）
の周波数としては７ＰＸ６０Ｈｚｘ４相＝ １６８０Ｈ
ｚに設定されている例がある。このバンドパスフィルタ
回路（９）の出力レベルが停電検知セット値設定回路（
１０）で設定された停電検知セット値を越えると比較器
け１）は動作して停電検知信号（１２）全出力し、ｐＨ
１Ｍコンバータ（４） トＶＶＶＦインバータ（６）の
動作を停電させる。The tertiary winding (8) of the main transformer (3) is used not only for power failure detection but also for gate firing control and power factor control of the 2wM converter (4). Bandpass filter circuit (9)
detects a specific high frequency component caused by the switching frequency of the PWM converter (4). For example, PMN
Control is 7 pulse control, power frequency is 60Hz, PWM converter (4) connected to secondary winding of main transformer (3)
If the number of phases is 4, the band pass filter circuit (9)
The frequency is 7Px60Hzx4 phase = 1680H
There is an example where it is set to z. The output level of this bandpass filter circuit (9) is determined by the power failure detection set value setting circuit (
When the power failure detection set value set in step 10) is exceeded, comparator 1) operates and outputs the power failure detection signal (12) in full, and the pH
The operation of the 1M converter (4) and VVVF inverter (6) is interrupted.
［発明が解決しようとする課題］
交流電気車の従来の停電検知装置では、停電と判定する
検知セット値は固定であった。しかしながら変電所から
車両までの距離などの饋電条件が変わると通常制御時の
高周波の発生レベルが変化するので、この停電検知セッ
ト値は通常時に誤検知しない様に各種条件を考慮して設
定されることが必要で、また通常制御時の高周波発生レ
ベルが低い条件で停電が発生した場合には停電検知セッ
ト値に至るまで高周波が増加するのに時間を要し、停電
検知動作が遅れるという問題点があった。[Problems to be Solved by the Invention] In conventional power outage detection devices for AC electric vehicles, the detection set value for determining a power outage is fixed. However, if the power supply conditions such as the distance from the substation to the vehicle change, the high frequency generation level during normal control will change, so this power outage detection set value is set taking into account various conditions to avoid false detection during normal times. In addition, if a power outage occurs under conditions where the high frequency generation level during normal control is low, it takes time for the high frequency to increase to the power outage detection set value, causing a delay in power outage detection. There was a point.
この発明は、このような問題点を解決するためになされ
たもので、いかなる饋電条件においても、即ち通常制御
時の高周波の発生レベルがいかなるレベルであっても、
停電時には速やかに動作を停止させる交流電気車の停電
検知装置を得ることを目的としている。This invention was made to solve such problems, and under any feeding conditions, that is, no matter what the level of high frequency generation during normal control,
The purpose of this invention is to obtain a power outage detection device for an AC electric vehicle that immediately stops operation in the event of a power outage.
［課題を解決するための手段］
この発明に係る交流電気車の停電検知装置は、主変圧器
の３次巻線に接続さてその電圧の所定の周波数成分を検
出する手段と、前記周波数成分が増加する変化率を検知
する変化率検知回路と、この変化率検知回路の出力が所
定の高調波変化率停電検知セット値を越えると停電と判
定し、コンバータおよびインバータの動作をすみやかに
停止させる手段とを設けたものである。[Means for Solving the Problems] A power outage detection device for an AC electric vehicle according to the present invention includes means connected to a tertiary winding of a main transformer to detect a predetermined frequency component of the voltage, and a means for detecting a predetermined frequency component of the voltage. A rate-of-change detection circuit that detects an increasing rate of change, and means for determining a power outage when the output of the rate-of-change detection circuit exceeds a predetermined harmonic rate-of-change power failure detection set value, and promptly stopping the operation of the converter and inverter. It has been established that
［作 用コ
この発明においては、所定の高周波成分の増加する変化
率が所定の高調波変化率停電検知セット値を越えること
により停電を検知する。[Operation] In this invention, a power outage is detected when the increasing rate of change of a predetermined high frequency component exceeds a predetermined harmonic change rate power outage detection set value.
［実施例］
以下、この発明の一実施例を図について説明する。第１
図はこの発明の一実施例を備えた交流電気車を示すブロ
ック図であり、（１）〜（９）、（１１）、（１２）は
第２図に示したものと同一である。 （１３）はバンド
パスフィルタ回路（９）と比較器（１１）の一方の入力
端子との間に接続され、バンドパスフィルタ回路（９）
の出力レベルの増加時にその変化率を検知する変化率検
知回路、例えば微分回路などで構成されるものであり、
（１０＾）は比較器（１１）の他方の入力端子に接続さ
れ、高調波変化率による停電検知セット値を設定する回
路である。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
The figure is a block diagram showing an AC electric vehicle equipped with an embodiment of the present invention, and (1) to (9), (11), and (12) are the same as those shown in FIG. 2. (13) is connected between the bandpass filter circuit (9) and one input terminal of the comparator (11), and the bandpass filter circuit (9)
It consists of a rate-of-change detection circuit, such as a differentiating circuit, that detects the rate of change when the output level increases.
(10^) is a circuit that is connected to the other input terminal of the comparator (11) and sets a power failure detection set value based on the harmonic change rate.
この発明の停電検知装置は、バンドパスフィルタ回路（
９）、変化率検知回路（１３）、停電検知セット値設定
回路（１０＾）および比較器（１１）から成る。The power outage detection device of this invention includes a bandpass filter circuit (
9), a change rate detection circuit (13), a power failure detection set value setting circuit (10^), and a comparator (11).
上述したように構成された停電検知装置において、バン
ドパスフィルタ回路（９）の出力はＰＭＮコンバータ（
４）の通常制御時の饋電回路の状態例えば変電所のイン
ピーダンスまたは変電所と交流電気車との距離などによ
って絶えずレベルが変化している。この出力レベルは停
電時に急激に増加する変化率を検知する変化率検知回路
（１３）によって検知され、その出力が停電検知セット
値設定回路（１０＾）で設定された高調波変化率停電検
知セット値を越えると比較器（１１）は動作して停電検
知信号（１２）を出力し、ｐｗｓ：ｙンバータ〈４）オ
よびＶＶＶＦインバータ（６）の動作を停止させ、これ
により回生時には他のカ行車両または停電事故地点への
電力供給を速やかに絶つことになる。In the power failure detection device configured as described above, the output of the bandpass filter circuit (9) is connected to the PMN converter (
4) The level constantly changes depending on the state of the feeder circuit during normal control, such as the impedance of the substation or the distance between the substation and the AC electric car. This output level is detected by a rate-of-change detection circuit (13) that detects a rate of change that increases rapidly during a power outage, and its output is used as the harmonic rate-of-change power outage detection set set by the power outage detection set value setting circuit (10^). When the value is exceeded, the comparator (11) operates and outputs a power failure detection signal (12), stopping the operation of the PWS:Y inverter (4) and the VVVF inverter (6), thereby preventing other power supplies from operating during regeneration. The power supply to the vehicle or the area where the power outage occurred will be immediately cut off.
［発明の効果］
以上、詳しく説明したように、この発明は、主変圧器の
３次巻線に接続さてその電圧の所定の周波数成分を検出
する手段と、前記周波数成分が増加する変化率を検知す
る変化率検知回路と、この変化率検知回路の出力が所定
の高調波変化率停電検知セット値を越えると停電と判定
し、コンバタおよびインバータの動作をすみやかに停止
させる手段とを設けたので、μ電条件が異なり、高調波
の通常的の発生レベルが異なるあらゆる場合において速
やかに停電を検知でき、安全でかつ精度の高いものが得
られるという効果を奏する。[Effects of the Invention] As explained in detail above, the present invention provides a means for detecting a predetermined frequency component of the voltage connected to the tertiary winding of the main transformer, and a means for detecting the rate of change at which the frequency component increases. The system is equipped with a rate-of-change detection circuit and means for determining a power outage when the output of the rate-of-change detection circuit exceeds a predetermined harmonic rate-of-change power failure detection set value, and promptly stopping the operation of the converter and inverter. The present invention has the effect that a power outage can be quickly detected in all cases where the μ-electrical conditions are different and the normal generation level of harmonics is different, and that it is safe and highly accurate.
第１図はこの発明の一実施例を備えた交流電気車のブロ
ック図、第２図は従来の停電検知装置を備えた交流電気
車のブロック図である。
図において、（１）交流架線、（３）は主変圧器、（４
）はＰＩＴＭコンバータ、（５）は平滑コンデンサ、（
６）はＶＶＶＦインバータ、（７）は誘導電動機、（８
）は３次巻線、（９）はバンドパスフィルタ回路、（１
０＾）は停電検知セット値設定回路、（１１）は比較器
、（１３）は変化率検知回路である。
なお、図中、同一符号は同一、又は相当部分を示す。FIG. 1 is a block diagram of an AC electric vehicle equipped with an embodiment of the present invention, and FIG. 2 is a block diagram of an AC electric vehicle equipped with a conventional power failure detection device. In the figure, (1) AC overhead lines, (3) the main transformer, (4
) is a PITM converter, (5) is a smoothing capacitor, (
6) is a VVVF inverter, (7) is an induction motor, (8)
) is the tertiary winding, (9) is the bandpass filter circuit, (1
0^) is a power failure detection set value setting circuit, (11) is a comparator, and (13) is a rate of change detection circuit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
圧器の２次巻線に接続されて直流出力電圧を一定に制御
する少なくとも１個のコンバータと、このコンバータの
直流出力側に接続された平滑コンデンサと、この平滑コ
ンデンサを電圧源とするインバータと、このインバータ
の交流出力側に接続された電動機とを備えた交流電気車
において、前記主変圧器の３次巻線に接続されてその電
圧の所定の周波数成分を検出する手段と、前記周波数成
分が増加する変化率を検知する変化率検知回路と、この
変化率検知回路の出力が所定の高調波変化率停電検知セ
ット値を越えると停電と判定し、前記コンバータおよび
前記インバータの動作をすみやかに停止させる手段とを
設けたことを特徴とする交流電気車の停電検知装置。A main transformer having a primary winding connected to an AC overhead wire, at least one converter connected to the secondary winding of the main transformer to control a DC output voltage at a constant level, and a DC output side of the converter. In an AC electric vehicle equipped with a smoothing capacitor connected to the main transformer, an inverter using the smoothing capacitor as a voltage source, and an electric motor connected to the AC output side of the inverter, the motor is connected to the tertiary winding of the main transformer. means for detecting a predetermined frequency component of the voltage, a rate-of-change detection circuit for detecting a rate of change at which the frequency component increases, and an output of the rate-of-change detection circuit set to a predetermined harmonic rate-of-change power failure detection set value. 1. A power outage detection device for an AC electric vehicle, characterized in that a power outage detection device for an AC electric vehicle is provided, comprising means for determining a power outage when a power outage exceeds the threshold and immediately stopping the operation of the converter and the inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2232499A JP2672885B2 (en) | 1990-09-04 | 1990-09-04 | Power failure detection device for AC electric vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2232499A JP2672885B2 (en) | 1990-09-04 | 1990-09-04 | Power failure detection device for AC electric vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04117103A true JPH04117103A (en) | 1992-04-17 |
| JP2672885B2 JP2672885B2 (en) | 1997-11-05 |
Family
ID=16940287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2232499A Expired - Lifetime JP2672885B2 (en) | 1990-09-04 | 1990-09-04 | Power failure detection device for AC electric vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2672885B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5606943A (en) * | 1993-11-12 | 1997-03-04 | Kawasaki Jukogyo Kabushiki Kaisha | Four-cycle engine |
| WO2009025049A1 (en) * | 2007-08-22 | 2009-02-26 | Mitsubishi Electric Corporation | Controller for ac electric train |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01259702A (en) * | 1988-04-11 | 1989-10-17 | Toshiba Corp | Controller for ac electrical vehicle |
| JPH0241605A (en) * | 1988-07-28 | 1990-02-09 | Toshiba Corp | Controller for ac electric rolling stock |
-
1990
- 1990-09-04 JP JP2232499A patent/JP2672885B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01259702A (en) * | 1988-04-11 | 1989-10-17 | Toshiba Corp | Controller for ac electrical vehicle |
| JPH0241605A (en) * | 1988-07-28 | 1990-02-09 | Toshiba Corp | Controller for ac electric rolling stock |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5606943A (en) * | 1993-11-12 | 1997-03-04 | Kawasaki Jukogyo Kabushiki Kaisha | Four-cycle engine |
| WO2009025049A1 (en) * | 2007-08-22 | 2009-02-26 | Mitsubishi Electric Corporation | Controller for ac electric train |
| US8803356B2 (en) | 2007-08-22 | 2014-08-12 | Mitsubishi Electric Corporation | Controller for AC electric train |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2672885B2 (en) | 1997-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0532745B1 (en) | Regenerative braking protection for an electrically-propelled traction vehicle | |
| US5345358A (en) | Method for evaluating operability of filter components in power conversion system | |
| KR100213460B1 (en) | Electric vehicle controller | |
| JP2672885B2 (en) | Power failure detection device for AC electric vehicles | |
| JP2672911B2 (en) | Blackout detection method for AC electric vehicles | |
| JP2723372B2 (en) | AC electric vehicle control device | |
| JP7034331B2 (en) | Power converter and disconnection detection method | |
| JP3144848B2 (en) | Power converter for electric vehicles | |
| JPH06197402A (en) | Controller for ac electric rolling stock | |
| JPS6277887A (en) | Voltage type inverter device | |
| JP3186495B2 (en) | Power converter for AC electric vehicles | |
| JPH06197401A (en) | Power failure sensing system for electric rolling stock | |
| JP2766584B2 (en) | AC electric vehicle control device | |
| JPH09154203A (en) | Controller for ac electric rolling stock | |
| GB2232836A (en) | Traction current monitoring arrangement | |
| JPS6311001A (en) | Controller for electric rolling stock | |
| JPH07154974A (en) | Power converter apparatus | |
| JPS62135203A (en) | Braking method for ac electric railway car | |
| JP3153655B2 (en) | Electric car control device | |
| EP3522349A1 (en) | Power conversion device for railroad vehicle and for retrofitting to railroad vehicle, and control method therefor | |
| JP3706188B2 (en) | Active filter | |
| JPH0866055A (en) | Power conversion apparatus | |
| JPS58116002A (en) | Controller for electric rolling stock and controlling method thereof | |
| JPH06169501A (en) | Power converter for electric railcar | |
| JPH01165974A (en) | Power converter |